docs: def frequencyRedefinition(CellChannelDescription_presence=0):
      """Frequency redefinition Section 9.1.13"""
      a = TpPd(pd=0x6)
      b = MessageType(mesType=0x14)  # 00010100
      c = ChannelDescription()
      d = MobileAllocation()
      e = StartingTime()
      packet = a / b / c / d / e
      if CellChannelDescription_presence is 1:
          f = CellChannelDescriptionHdr(ieiCCD=0x62, eightBitCCD=0x0)
          packet = packet / f
      return packet